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Emerald Crab -  Mithrax sculptus - 100 pack

Emerald Crab - Mithrax sculptus - 100 pack

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Combine crabs, snails, shrimp, star fish, sea cucumbers and urchins with a nudibranch to build an efficient cleaning crew.

See the table for recommended packages for each tank volume.

See compatibility chart for participant interaction in your aquarium.

Category Invertebrate
Care Easy
Diet Omnivore
Maximum Size 2 Inches
Origin Florida
Supplements Calcium, Magnesium, Iodine
Water Condition 72-78 F, dkh 8-12, PH 8.1-8.4, sg 1.023-1.025
Water Flow Light
Light Medium
Reef Compatible Yes
Compatibility See Chart 


The Emerald Crab is well respected for its scavenging ability. It will enthusiastically feed on uneaten meaty foods and many types of nuisance algae. Emerald Crabs will also eat bubble algae and helps clean your aquarium of these algae. Its flat shiny green body and hairy legs easily identify the Emerald Crab.

In the home aquarium, the emerald crab requires a well-established aquarium with plenty of rocks and hiding places. Once familiar with its surroundings, the Emerald Crab will venture out of hiding during the day to forage on algae.

Many aquarists supplement the Emerald Crab's diet with dried seaweed and chopped meaty foods, such as shrimp, as well as a quality pellet fish food. When well fed, most Emerald Crabs are very tolerant of their tankmates and highly compatible in reef environments.

Approximate Purchase Size: 1/2" to 2-1/2"